Paper slitter and rewinder.



S. M. LANGSTON: PAPER SLITTBR AND-REWINDER.

APPLICATION FILED MAR. 6, 1911.

Patented Nov. 28, 1911.

2 SHEETS-BHBET 1.

INVENTflR W M l TTURIEYS 73, Ni". LANGSTON.

PAPER SLITTEB AND REWINDER APPLIOATIOH FILED MAR 6 1911.

50 claims.

TED STATES PATENT OFFICE.

fiAMUEL M. LANG-STON, OF-CAMDEN, NEW JERSEY.

PAPER SLITTER AND REWINDER.

, rooaase.

' To all whom it may concern Rewinders, of which the following clear, and exact description. v

This invention relates to certain 1mprove is a full,

ments in paper-slitting and rewinding may chineryof that type in whiclrpaper or other sheet material is. unwound from one roll,

subdivided longitudinally into a plurality of separate 'stripsand rewound on a single. 1a reel.

The object of the present invention is to more firmly and: effectively support the i'e-l winding roll than; is possible in the con-;

' disks 14 rigidly secured to the parallel struction shown in my prior Patent No.

2d 943.35% issued December 1st, 1909, and at the same time to prevent the lateral dis placement of the strips of paper prior to the rewinding and to prevent the minutefragments of paper liberated at the cutters 5 from becoming rewound with the paper.

The absence of this aper dust in the rewound material is highly important, par

ticularly where the resulting product ofthe machine is to be used in cash registers, stock tickers or other machines using paper rolls and having delicate mechanism.

A further object of my invention is to facilitate the threading of the paper between the cutters of the machine and to facilitate the further adjusting of the cutters to get the desired width of paper strips.

To secure these objects, the rewinding reel is mounted directly above two rewinding rollers, so as to support the roll of to paper upon these rollers and separate and distinct cutters independent of said rollers are mounted at one side thereof. Adjustable fingers engage with the paper at the lines 'of subdivision after the paper leaves the cutters and before it reaches the rollers and reel.

Other objects andadvantages of my improved construction are more fully set forth and more particularly pointed out in the the different views.

Specification of Letters Patent.

Application filed March 6, 1911.

. machine is supported framework.

Serial No. 612,566.

Figure 1 is an end view of afmaehine con- Patented Nov. 28,

structed in accordancegiwith"my invention;

Fig. 2 is a front view'tli'er'eof; "and Fig.3.- is a detail plan view showing a device for preventing sidewise movement of the paper, such device not being shown in Fig. 2.

The operating mechanism of my improved 11 for the roll of paper A which is to be unwound, subdivided into separate strips and rewound. The strip of paper a, as it funwinds from the roll A, may pass over suitable tension rollers 12 and 13 on its way to the cutters. These cutters are in the form of shafts 15 and. 16, so adjusted in respect to each other, that thedisks overlap and have a shearing action. These cutters are preferably constructed as shown in my prior Patent N 0. 692,155, issued J anuary28, 1902.

- The shaft 16 is preferably mounted in bear lngs carried by the main frame of' the machine, while the shaft 15 is mounted in arms 17 pivoted on the frame so that the arms may be swung outwardly to separate the cutters for a considerable distance and permit their free adjustment along their respective shafts and the free movement of the paper between the cutters in threadingthe machine.

Any suitablemeans may be employed for locking the arms 17 in their adjusted positions. As shown, there is an extension'18 integral with one of the arms and having a curved slot through which extends a stud bolt 19 on the frame. By ti htening the nut on this bolt, the arms may be locked in any desired position. These cutters are adjacent upon any suitable? As shown, this includes-two end frames 10 mounted on a suitable to one side of the machine and at a lower elevation than the rewinding reel, so that any lint which may be produced by the cut-'- ting action may drop without coming near the rewin'ding reeL In addition to the tension roller 13, there-- is another tension roller 20, the twof rollers being so disposed in respect to- .each other and in respect to the cutters, that the'paper passes directly through and 7 between the cutters in a straight line without binding against the cutters and without either of them acting in any way to advance the pa- 2 per. .Preferably the cutters travel a slightly higher rate of speed than thepaper so as to more effectively cut the latter.

At a higher elevation than the cutters and at one side of the cutters are two rewinding rollers 21 and 22 rotatable about parallel axes and in the same direction. These rollers are mounted in suitable hearings in the frame of the machine, and serve to support the rewinding reel and to indirectly cause the rotation of the latter. The rewinding reel with. the roll B of the separate strips of paper is disposed directly above the rewinding rollers 21 and 22, and is supported within the groove or recess between thesame. The rotation of the rewinding, rollers causes the rotatibn of the rewinding reel by frictional engagement, and the greater the weight of the roll of; paper on the'reel, the greater will be the friction be tween the lower surface of the reel and the rollers 21 and 22, and the more effectively will the roll be rotated to continue the winding'bf paper thereon. For holding the reel and its roll B ofpaper in place upon the rewinding rollers 2*: and 22, I provide a pair of arms 23 pivoted to a shaft 2a on the frame. At the free end of these arms, I pivot-ally connect a pair of arms 25 nor mally extending downwardly from the ends of the arms 23 and having their lower ends carrying lugs or extensions 26 vertically movable within slots 27 in upward extensions 28 of the main frame. The lower ends of the arms 25 support a rewinding roll 29 hearing directly down upon the upper surface of the roll B and rotated at a slightly greater surface speed thanth'e rate of travel of the paper.. The arms 23 and 25 are of cons'idq'erable weight, and this weight comes directly upon the paper roll to give the desired frictional engagement between. the rewinding roller 24. andthe pair.

For transmitting motion to the several parts, I-provide a main drive shaft30 having an end wheel 31 thereon and a driving pulley 82. The pulley may be loose from the shaft and connected thereto by a cone clutch 33 suitably regulated by a hand-operated device 34. This will permit the machine to start slowly upon the application of power thereto, as the clutch may be regulated to permit a slip when the strain exceeds a predetermined limit. This clutch involves no portion'of my invention. From the main drive shaft 30, power is transv mitted to the shaft of the rewinding roller 22 by means of interineshing gears 35 and ,36, and power is transmitted. from the re- ,winding roller 22 to the rewinding' roller 21 by a small pinion 37 and gears 38 of the same 7 size, and connected to the two rollers. This insures the positive and continuous rotation of the two rollers in the same direction Ml the same speed. The cnttsrshafi isi arm from the rewinding roll 21 by an intermediate the rewinding roll 21 icyan intermediate pinion 39 and gears 40 and all on the two shafts. The cutter shaft 15 carries a gear gear on the cutter shaft 15 when the arms 17 are swung to bring the pairs of cutters in proper operative relationship. One of the two cutter shafts preferably has a coil spring encircling it at one end and tending to move it longitudinally and hold each cutter on that shaft closely against the side of the corresponding cutter on the other shaft. The ratio of the gears is such that the cutters 14-. travel at a slightly higher rate of speed than the paper and thus make a cleaner and better out.

For driving the upper fric ion roller 29, I drive the shaft 24: by a chain a5 passing over a sprocket l6 loose on the shaft 24. A chain 1-? passes over a'sprocket 4E8 fixed on the shaft 24 and over a sprocket on'a shaft 49 constituting the pivotal connections between the arms 23 and arms 25. Between. the sprockets 46 and as, there is a friction disk and a spring 50 which holds the two this disk. Thus, as the sprocket wheel 46 is positively rotated, the sprocket 18 may lag behind, due to the slip at the friction disk. The arms 25 at their upper ends have downward extensions, and the friction roller 29 is mounted in the lower end of these ex tensions The sprocket wheel on the shaft :9 is at the upper end of these extensions, so that the chain will not interfere with theroll of paper. Suitable intermeshing gears 51 transmit motion to the friction "'oller. 29 from the shaft 4-.9. The friction roller'29 thus normally tends; to rotate at a speed somewhat in excess of the rate of travel of the paper, but it is permitted to'rotate at the same speed by reason of the friction 48. This tendency of-the roller 24: to travel fasterthan the paper insures the firm and solid winding of the paper.

It will be noted that the cutters are 10- cated-below-the friction-winding rollers 21 and 22 and at one side thereof, and that the paper passes upwardly between the cutters and thence diagonally to the friction roller 21. As the paper passes along this diagonal run," the fine lint or paper dust at the edges of the cut paper will fall away from the paper before the latter reaches the winding roller 21, and thus a minimum quantity of this dust will be rolled in with the paper. To further remove the lint and paper dust from the'strips of paper while passing alongthis diagonal run, I may, if desired, provide the attachment shown in Figs. 1 and 3. meet o wn Fig. 2,

42, which in'terineshes with a corresponding sprocket wheels in close engagement with ounges a plurality of fingers 52, each secured to a collar 53, and all of the collars are mounted on a transversely extending rod 54. The rod is mounted insuitable extensions 55 on the harms 17. The collars are adjustable longi tudinally to the rod and angularly, so .that ;-they may be adjusted to engage with the paper along the slits in the latter. Each vfinger is preferably cut slightly diagonal at Wits end, as shown in Fig. 3, and the finger is adjusted: to such a ]position that its point will press'down slig tly upon the paper at the slit. This tends to free the strips from all particles of paper and to permit 16 the aper to deliver free fromdust to the winding rollers. Furthermore, the fingers prevent any strip fromworking sidewise so as to overlap an adjacent strip and become partially unwound therewith. The fingers mayi be used solely for this purpose if desire Various changes may bemade in the details of the construction of my machine and. within the terms of the appended claims without departing from the spirit ofmy invention.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is:

1. A slitter and rewinder having in combination cutting mechanism for su dividing a strip of paper or the like longitudinally, rewinding mechanism including a reel for receiving the material, a transversely extending rod, a plurality of collars secured thereto and adjustable angularly and longitudinally thereof, a plurality of substantially fiat fingers carried by said collars and lying in approximately the same plane and each 40 having a pointed end bearing upon the surface of the paper at a line of subdivision for preventing lateral movement of the individual strips. v

2. A slitter and rewinder having a series of rotary cutters forengagement with the paper upon one side thereof, a pivoted frame, a series of rotary cutters carried thereby for cooperation with the first-mentioned cutters, rewinding mechanism, a plurality of fingers for engagement with the paper to prevent lateral movement of the individual strips of paper and means secured to said pivoted frame for adjustably supporting said fingers. 5e 3. A slitter and rewinder having a series of rotary cutters, a movable frame, a sec- 0nd series of rotary cutters carried by said frame for cooperation with the first-mom tioned cutters to subdivide the paper or the like into individual strips, rewinding mechanism and means carried by said movable frame for engagement with the paper to prevent lateral movement of the individual strips. 4;. A slitter and rewinder having a-pair the line of subdivision for preventing latof friction winding rollers rotatable in the same direction and serving to support a roll of material being reeled up, a pressure roller adapted to bear on said roll of cut material, tWo series of rotary cutters for engagement with opposite sides of the paper below said first-mentioned rollers at one side thereof, a transversely extending rod disposed above one of said series of cutters, a plurality of collars secured thereto and adjustable angularly and longitudinally thereof, a plurality of substantially flat fingers carried by said collars and each having a pointed end bearing upon the upper surface of the paper at 8G eral movement of the individual strips.

5. A slitter and rewinder having a pair of friction winding rollers rotatable inthe same direction and serving to support a roll of material being reeled up, a pressure roller adapted to bear on said roll of cut material, two series of rotary cuttersfor engagement with opposite sidesof the paper below said first-mentioned rollers-at one side thereof, a transverselyv extending rod and a series of substantially fiat fingers carried thereby and each having a pointed end engaging, with the upper surface of the paper at the lines of subdivision for preventing lateral movement of the individual strips.

6. A slitter and rewinder having a pair of friction winding rollers rotatable in the same direction and serving to support a roll of material being reeled. up, a pressure roller to bear on said roll of out material, two seriesof rotary cutters for engagement with opposite sides of the paper below said firstanentioned rollers at one side thereof, a bar over which the paper passes from said cutters to said first-mentioned rollers and a plurality of substantially flat fingers disposed'above the paper intermediate said outters and said Winding rollers and in engagement with the uppersurface of said paper adjacent to the lines of subdivision of the latter for preventing lateral movement of the individual strips of paper.

7 A slitter and rewinder having in combination cutting mechanism for subdividing a strip of paper or the like longitudinally,

rewinding mechanism including a reel for receiving the material and a plurality of friction drums for engagement with the rewound material, one of'said drums receiving the subdivided strips and delivering the same to the reel, said drums and reel being relatively movable, and a plurality of adjustable fingers for engagementwith the surface -ef"the paper ad acent to thelines of subdivision and intermediate said cutting mechanism and saidrewinding mechanism for preventing the lateral movement of the individual strips of paper.

8. In 0 ination a pair of frictionwinding roll as revolving in the same direcguides for preventing lateral movement of said pressure roller, pivoted arms connected to said roller, means for transmitting power to the pivotal center of said arms, means for .transmitting power along said arms to said pressure roller, and spring-pressed friction tion and adapted to support the roll of cut material being reeled up, a pressure roller adapted to bear on the roll of cut material,

connections permitting a variation in the 10 speed of rotation of said pressure roller. In'testimony whereof I have signed my name to this specification'in the presence of two subscribing witnesses.

, SAMUEL M LANGSTON. Witnessesr ANNA W. KU'ENZEL, ROBERT JENNETT. 

